Inside the 2008 Tribeca Party Circuit

Penn Badgleyand Blake Lively

"I love everything about it, the clothes, the accessories, even the people who work there," said Blake Lively, professing her devotion to all things Chanel at the iconic label's annual dinner in celebration of the Tribeca Film Festival. And though Lively's dinner companion-and Gossip Girl co-star-Penn Badgley still had a hint of that fish out of water feeling, he claimed to be more at ease mingling with high society. "This is actually my second Chanel event," he said of the affair, held at Robert De Niro's new Greenwich Hotel. "I'm actually starting to enjoy these things."

-With reporting by Bronwyn Barnes, Grace Lee and Nakisha Williams

Mary-Kate Olsenand Christy Turlington

"My husband and I have already been here on one of our date nights," said Christy Turlington, before heading into AGO at the Greenwich Hotel for the 3rd annual Chanel Tribeca Film Festival dinner. Turlington and Mary-Kate Olsen were among the guests who helped recognize the artists who have contributed original artwork that will be presented to the award-winning filmmakers at this year's festival.

Cheryl Hinesand William H. Macy

After the premiere of their prom-themed flick, Bart Got A Room, Cheryl Hines (in Nanette Lepore) and William H. Macy got into a shake-your-booty mood during the after-party at the Cadillac lounge at Tenjune. "I hear New York audiences don't cut anyone a break, so it was great that they laughed," said a relieved Hines. How did the actress plan to celebrate the positive reaction to the film? "I'm going to dance my butt off!" she declared.

Julianne Moore

Julianne Moore (in Yves Saint Laurent) celebrated the Tribeca debut of Savage Grace at a private dinner at LIVEstyle Entertainment's Supper Club, held at New York City hot spot STK. Moore, who donned numerous wigs to play scandalous socialite Barbara Daly Baekeland, claimed that in this case, truth was stranger than fiction. "It's a true story and that's what's so compelling about it." Moore explained. "If it was fiction, you'd really say 'I can't imagine it!'"

Rumer Willis

Since she's a regular on the L.A. social scene, it was no surprise that Rumer Willis was the life of the party at the after-party for her thriller, From Within, held at Mansion nightclub.

Jimmy Fallon and Chris Katan

Jimmy Fallon and Chris Katan were among the former Saturday Night Live crew who hit the after-party for Baby Mama at The Museum of Modern Art. Padma Lakshmi, festival juror Fred Durst, and race car driver Danica Patrick also scored invites to the baby-themed bash.

Jason Lewis

Jason Lewis joined thousands of New Yorkers for Snapple Antioxidant Water's "Thriller" Night at the Tribeca Film Festival Drive-In. The Sex and the City actor was among the audience who watched the classic 1984 Michael Jackson music video.

Robert De Niroand Grace Hightower

Robert De Niro-with wife Grace Hightower on his arm- kicked off the 7th Annual Tribeca Film Festival at the annual Vanity Fair party, held at the State Supreme Courthouse in New York City. VIP guests including Edie Falco, Padma Lakshmi and Regis Philbin climbed the candle-lit stairs into the historic building to wish De Niro well on his hometown film fest.

Iman and David Bowie

After ascending into the Courthouse for the Vanity Fair bash, Tribeca Festival regulars Iman and David Bowie mingled with their fellow guests and dined on chicken pot pie and warm chocolate soufflé cake, provided by N.Y.C.'s Glorious Foods.